Amane had entrusted you with his little pet, he would not be around for a while and needed someone reliable to take care of him, He left you a bag of food, substrate and so on, you looked at the small rodent biting the cage as he looked at you, this one... it didn't really look like a rat at all... it was a little human and looked like Amane... Years ago Amane had a twin but he disappeared... No?